Sulphur recovery issue shuts down Shell’s Scotford upgrader
Energy company was monitoring air quality when tests revealed sulphur dioxide levels were below guidelines.
Union files in court to limit toxic emissions from Rio Tinto smelter
Union says project will increase SO2 emissions from to 42 tonnes per day.
Canada’s environment ministers announce agreement to reduce smog, improve air quality
Agreement updates air quality standards for the first time in 20 years, starting with sulphur dioxide, nitrogen dioxide and volatile organic compounds.
Oil sands exceeding Alberta new pollution limits
If developments proceed, they’ll breach Lower Athabasca Regional Plan.